Cigar overwrapping and banding machine



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United States Patent 3,452,516 CIGAR OVERWRAPPIN G AND BANDING MACHINE Dale R. Smith, York, Pa., assignor to York Production Engineering Co., Inc., Windsor, Pa., a corporation of Pennsylvania Original application July 26, 1965, Ser. No. 474,754, now Patent No. 3,411,616, dated Nov. 19, 1968. Divided and this application Oct. 4, 1967, Ser. No. 706,728

Int. Cl. B65b 11/00 U.S. Cl. 53378 1 Claim ABSTRACT OF THE DISCLOSURE In a cigar overwrapping and banding machine, automatic means are provided for folding the open ends of the wrapper which, before folding, extend beyond the two ends of the cigar.

This application is a division of application Ser. No. 474,754, filed July 26, 1965, by Dale R. Smith, entitled Cigar Overwrapping and Banding Machine, now US. Patent 3,411,616, issued Nov. 19, 1968.

The present invention relates generally to improvements in machines for wrapping cigars and particularly to improvements in a cigar overwrapping and banding machine.

More particularly, the present invention relates to the provision of automatic means for folding the open ends of a cellophane (or similar) Wrapper which before folding extend beyond the two ends of the cigar. The folding means are applied to an automatic cigar wrapping machine having means for advancing the cigars over an infeed platform, successively elevating the cigars one at a time from the infeed platform to the higher level of a discharge platform, and advancing the cigars over the discharge platform in spaced relation to each other. The over-wrapping machine includes means for positioning the cigars at a wrapping station, severing wrappers from a cellophane supply roll, folding the cellophane wrapper back about the cigar, and sealing the same. As indicated hereinbefore, the particular means claimed in the present divisional application are automatic means for folding the open ends of the wrappers.

In the drawings:

FIGURE 1 is a front elevation of the cigar overwrapping and banding machine, showing the machine at the end of a cigar advancing cycle;

FIGURE 2 shows an area of FIGURE 1 to an enlarged scale;

FIGURE 3 shows an area of FIGURE 1 to an en larged scale, but with the end sealing unit in retracted position;

FIGURE 4 is a view showing a cigar with a wrapper draped thereover and elevated from the position shown in FIGURES 1 and 2;

FIGURE 5 is a view showing one side of the wrapper being folded under the cigar;

FIGURE 6 is a view showing the other side of the wrapper being folded under the cigar;

FIGURE 7 is a rear elevation of the machine;

FIGURE 8 is a section showing mechanisms for effecting end folds, the mechanisms being in retracted position;

FIGURE 9 is a plan view of the mechanisms shown in FIGURE 8;

FIGURE 10 is similar to FIGURE 9, but shows the folding mechanisms fully advanced;

FIGURE 11 is similar to FIGURE 8, but shows the folding mechanisms in the process of making the folds;

cigars in a steady stream over an infeed platform, then successively elevating the cigars one at a time from the infeed platform to the higher level of a discharge platform, and advancing the cigars in a steady stream over the discharge platform. Wrapping of the cigar begins at the elevator position. Means for feeding a web of cellophane (or similar material) to the wrapping position are described and claimed in another divisional application, Ser. No. 706,727, filed Oct. 4, 1967. The present divisional application describes and claims means for folding the ends of the wrappers.

Referring particularly to FIGURES 1, 3, 7 and 8 to 11, the machine is provided with a pair of end-fold mechanisms, generally designated 516, located respectively on opposite sides of the discharge platform. Each of the mechanisms comprises a bracket 518 afiixed to one of the plate members 30 of the frame 40. Pivoted, as at 520, is one end of a link 522. The opposite end of the link is pivoted, as at 524, to one end of an arm 526. The other end of the arm is pivoted, as at 528, to a bearing 530 affixed to the frame 10. Extending upwardly from the pin 528 are a pair of laterally spaced arms 532. Pivoted to the upper end of each arm 532, as at 534, is a link 536. The opposite end of the link is pivoted, as at 538, to a block 540. The block 540 is slidably fitted over a support bar 542 carried by the frame 10 and carries a rod 544. The support bar also has slidably fitted thereover a split block 546. The block is provided with a blind bore 548 which accommodates a felt brake pad 550 overlying a compression spring 552. The block mounts a pair of stationary folding blades 554 and a pair of movable folding blades 556, the movable blades being pivoted, as at 558. The movable blades are provided with arcuate recesses 560 which form a socket for the reception of the head of rod 544, designated 562.

During the first one-quarter cycle, while the racks 16 are moving downwardly from the position of FIGURES 1, 2 and 4 to that of FIGURE 5, the link 522 is pulled downwardly by the frame 40. This rocks arm 526, pivot 528 and arms 532, pulling links 536 toward the cigar at the end-fold station. This causes the block 540 to slide along the bar 542 toward the block 546. The head 562 of the rod 544 causes the blades 556 to pivot about the pins 558. Thus the inner ends of the blades are spread apart, as shown in FIGURE 9. Block 546 moves from the position of FIGURE 9 to that of FIGURE 10, whereupon the blades 554 are projected into the end of the Wrapper extending beyond the end of the cigar, and the blades 556 straddle the end of the wrapper. During the second onequarter cycle, the folding mechanism is idle. During the third one-quarter cycle, the link 522 is raised by the frame 40. This rocks arms 526, pivot 528 and arms 532 back to their initial positions. Links 536, block 540 and rod 544 are pushed back to their initial positions. Blades 556 pivot and close making the end-fold shown in FIGURES 14 and 15. After some lost motion, while the blades 556 are closing to make the end-fold, the block 546 is pulled back to its initial position by the head of the rod 544. The

3 blades remain closed. During the fourth one-quarter cycle, the folding mechanism is idle.

What is claimed is:

1. In -a cigar overwrapping and banding machine, mechanism for folding the open end of a wrapper extending about a cigar comprising a member mounted for reciprocable movement axially of the cigar, brake means constantly opposing movement of said member axially of the cigar, a pair of relatively fixed folding blades mounted upon said member, a pair of relatively movable folding blades mounted upon said member and disposed between said relatively fixed folding blades, and means for actuating said member and relatively movable blades, said actuating means being operable for separating said relatively movable folding blades and then extending said member and blades as a unit against the effort of said brake means for inserting said relatively fixed blades into the end of said wrapper and for placing said relatively movable folding blades in straddling relation to the end of said wrap- 4 pets, and for bringing said relatively movable folding blades together again to tuck the opposite side areas of said wrapper between said relatively fixed folding blades to effect an end-fold and then, after forming said end-fold, retracting said member and blades as a unit against the effort of said brake means.

References Cited UNITED STATES PATENTS 1,875,979 9/1932 'Beutel 53-45 X 1,953,096 4/1934 Becker 5345 X 2,090,448 8/1937 Jahne 53-45 2,016,650 10/1935 Pedersen 53--371 3,398,659 8/1968 Egleston.

WAYNE A. MORSE, 111., Primary Examiner.

US. Cl. X.R. 53-371; 93-84 

